| 摘要 |
An antenna arrangement includes a main reflector 1 and a sub-reflector 2 which directs received radiation onto a food 3. The sub-reflector 2 also supports a patch antenna 4 which is arranged to receive radiation at a different frequency range than that at which the feed 3 operates. In another arrangement (not shown) the patch antenna 4 comprises an array of antenna elements. <IMAGE> |
